package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.dto.DishDto;
import com.itheima.reggie.dto.SetmealDto;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.entity.Setmeal;
import com.itheima.reggie.entity.SetmealDish;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.DishService;
import com.itheima.reggie.service.SetmealDishService;
import com.itheima.reggie.service.SetmealService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;

@RestController
@RequestMapping("/setmeal")
@Slf4j
public class SetmealController {
    @Autowired
    private DishService dishService;
    @Autowired
    private SetmealService setmealService;

    @Autowired
    private SetmealDishService setmealDishService;

    @Autowired
    private CategoryService categoryService;

    /**
     * 新增套餐
     *
     * @param setmealDto
     * @return
     */
    @PostMapping
    public R<String> save(@RequestBody SetmealDto setmealDto) {
        log.info("套餐信息：{}", setmealDto);

        setmealService.saveWithDish(setmealDto);
        return R.success("新增套餐成功");

    }

    /**
     * 套餐分页查询
     *
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(Integer page, Integer pageSize, String name) {
        //分页构造器对象
        Page<Setmeal> pageInfo = new Page<>(page, pageSize);
        Page<SetmealDto> dtoPage = new Page<>();

        LambdaQueryWrapper<Setmeal> queryWrapper = new LambdaQueryWrapper<>();

        queryWrapper.like(name != null, Setmeal::getName, name);
        queryWrapper.orderByDesc(Setmeal::getUpdateTime);

        setmealService.page(pageInfo, queryWrapper);

        //对象拷贝
        BeanUtils.copyProperties(pageInfo, dtoPage, "records");

        List<Setmeal> records = pageInfo.getRecords();
        List<SetmealDto> list = records.stream().map((item) -> {
            SetmealDto setmealDto = new SetmealDto();
            BeanUtils.copyProperties(item, setmealDto);

            //根据套餐分类id查询套餐名称
            Long categoryId = item.getCategoryId();
            Category category = categoryService.getById(categoryId);
            if (category != null) {
                String categoryName = category.getName();
                setmealDto.setCategoryName(categoryName);
            }
            return setmealDto;
        }).collect(Collectors.toList());

        dtoPage.setRecords(list);

//        //手写sql
//        Page<SetmealDto> dtoPage=setmealService.pageBySQL(page,pageSize,name);
        return R.success(dtoPage);

    }


    /**
     * 删除套餐
     *
     * @param ids
     * @return
     */
    @DeleteMapping
    public R<String> delete(@RequestParam List<Long> ids) {

        log.info("删除套餐id为:{}", ids);

        setmealService.removeWithDish(ids);
        return R.success("套餐数据删除成功");
    }

    /**
     * 修改套餐状态（启售、停售）
     *
     * @param status
     * @param ids
     * @return
     */
    @PostMapping("/status/{status}")
    public R<String> updateStatus(@PathVariable Integer status, @RequestParam List<Long> ids) {
        for (Long id : ids) {
            Setmeal setmeal = setmealService.getById(id);
            setmeal.setStatus(status);
            setmealService.updateById(setmeal);

        }
        return R.success("套餐状态修改成功");
    }

    /**
     * 根据id查询对应的套餐及其关联菜品的信息
     *
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<SetmealDto> getById(@PathVariable Long id) {

        SetmealDto setmealDto = setmealService.getByIdWithDish(id);

        return R.success(setmealDto);
    }


    /**
     * 修改套餐,并修改关联菜品的对应信息
     *
     * @param setmealDto
     */
    @PutMapping
    public R<String> update(@RequestBody SetmealDto setmealDto) {

        setmealService.updateWithDish(setmealDto);
        return R.success("套餐修改成功");
    }


    /**
     * 套餐列表
     *
     * @param setmeal
     * @return
     */
    @GetMapping("/list")
    public R<List<Setmeal>> list(Setmeal setmeal) {
        LambdaQueryWrapper<Setmeal> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(setmeal.getCategoryId() != null, Setmeal::getCategoryId, setmeal.getCategoryId());
        queryWrapper.eq(setmeal.getStatus() != null, Setmeal::getStatus, setmeal.getStatus());
        queryWrapper.orderByDesc(Setmeal::getUpdateTime);

        List<Setmeal> list = setmealService.list(queryWrapper);
        return R.success(list);
    }


    /**
     * 前端套餐关联菜品详情
     *
     * @param id
     * @return
     */
    @GetMapping("/dish/{id}")


    public R<List<DishDto>> dishList(@PathVariable Long id) {


        LambdaQueryWrapper<SetmealDish> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(SetmealDish::getSetmealId, id);
        List<SetmealDish> list = setmealDishService.list(queryWrapper);
//        List<DishDto> dtoList = new ArrayList<>();
        List<DishDto> dtoList = list.stream().map((item) -> {
            DishDto dishDto = new DishDto();

            Long dishId = item.getDishId();
            Dish dish = dishService.getById(dishId);
            BeanUtils.copyProperties(dish,dishDto);
            dishDto.setCopies(item.getCopies());

            return dishDto;
        }).collect(Collectors.toList());
        log.info(dtoList.toString());


        return R.success(dtoList);
    }


}
